![Page 1: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/1.jpg)
Mine Water Quality Changes in at the Mayer Ranch
Wetland
Kim Wahnee
Dr. Robert Nairn
Dr. Keith Strevett
REU 2000
![Page 2: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/2.jpg)
Presentation Overview
General backgroundIntroduction to study site Research questionsField and analytical methodsResultsConclusions
![Page 3: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/3.jpg)
Tri-State Mining DistrictExtensive underground lead and zinc mining (1900-
1960s)Mine flooding began after cessation of mining and
associated dewateringPolluted artesian discharges emerged in late 197940 square mile site received Superfund status in 1983
![Page 4: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/4.jpg)
OTTAWA COUNTY
OKLAHOMA
Picher Mining Field of the Tri-State Mining District
![Page 5: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/5.jpg)
Mayer Ranch
Location of first major mine water discharges; November 1979 in horse pasture
At least two major seeps identifiedMine water characterized by USGS
(1985)Extensive volunteer cattail marsh
established in last 20 years
![Page 6: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/6.jpg)
Mayer Ranch Wetland
![Page 7: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/7.jpg)
WestMarsh
Seep A
Seep B
Meyer Ranch Wetland
Runoff
Mine drainage marsh
![Page 8: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/8.jpg)
Research Questions
What are the chemical constituents of the mine discharges and surface waters at Mayer Ranch?
Is the water quality changing from the discharges to wetland outflow?
![Page 9: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/9.jpg)
MethodsSampled mine water discharges and surface
waters at 8 locationsIn situ measurements
pH, temperature, alkalinity, dissolved oxygen, oxidation-reduction potential, conductivity, turbidity, flow rate
Metals and anion data Ca, Mg, Zn, Fe, Cd, Pb SO4
-2, Cl-, F-, NO2-, NO3
-, PO4-3
![Page 10: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/10.jpg)
![Page 11: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/11.jpg)
Comparison to Historical Data
USGS(1985)
Seep A(2000)
Seep B(2000)
pH 5.90.2 5.90.3 6.10.2
Alkalinity(mg/L as CaCO3)
5536 45641 37284
Ca (mg/L) 680113 74427 726129
Mg (mg/L) 1476 1452 144187
Fe (mg/L) 40312 15611 17034
Zn (mg/L) 4710 110.5 102.3
Cd (mg/L) 0.010.01 0.060.01 0.060.01
Pb (mg/L) 0.020.03 0.290.04 0.250.01
![Page 12: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/12.jpg)
WestMarsh
Seep A
Seep B
Site 1
Site 2
Site 3
Water Sampling Locations
Runoff
Site 4
Surface water sampling
Mine water discharge sampling
![Page 13: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/13.jpg)
Mean pH
0
1
2
3
4
5
6
7
8
pH
West Marsh
Runoff
SEEP A
SEEP B
S1
S2
S3
S4
![Page 14: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/14.jpg)
Alkalinity (mg/L as CaCO3)
0
100
200
300
400
500
600
Con
cent
ratio
n (m
g/L
as C
aCO
3)
West Marsh
Runoff
SEEP A
SEEP B
S1
S2
S3
S4
![Page 15: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/15.jpg)
Oxidation Reduction Potential
-50
0
50
100
150
200
Red
ox (m
V)
West Marsh
Runoff
SEEP A
SEEP B
S1
S2
S3
S4
![Page 16: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/16.jpg)
Calcium (Ca) concentrations (mg/L).
0
100
200
300
400
500
600
700
800
900
Conc
entra
tion
(mg/
L)
West Marsh
Runoff
Seep A
Seep B
S1
S2
S3
S4
![Page 17: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/17.jpg)
Magnesium (Mg) Concentrations (mg/L)
0
20
40
60
80
100
120
140
160
180
Conc
entra
tion
(mg/
L)
West Marsh
Runoff
Seep A
Seep B
S1
S2
S3
S4
![Page 18: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/18.jpg)
Iron (Fe) Concentrations (mg/L)
0
20
40
60
80
100
120
140
160
Con
cent
ratio
n (m
g/L)
West Marsh
Runoff
Seep A
Seep B
S1
S2
S3
S4
![Page 19: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/19.jpg)
Zinc (Zn) Concentrations (mg/L)
0
2
4
6
8
10
12
14
Con
cent
ratio
n (m
g/L)
West Marsh
Runoff
Seep A
Seep B
S1
S2
S3
S4
![Page 20: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/20.jpg)
Sulfate Concentrations (mg/L)
0
500
1000
1500
2000
2500
Conc
entra
tion
(mg/
L)
West Marsh
Runoff
Seep A
Seep B
S1
S2
S3
S4
![Page 21: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/21.jpg)
SummaryChanges in historical concentrations
Fe, Zn, Pb?, Cd?
Conservative constituents do not change Ca, Mg
Concentrations change with flow through wetland natural biogeochemical processes dilution
![Page 22: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/22.jpg)
% Change in Concentrations
1 2 2 3 3 4
Fe 48 14 8
Zn 60 25 10
Ca 43 2 11
Mg 41 2 14
SO4-2 42 28 25
![Page 23: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/23.jpg)
Conclusions
Mine discharge waters are elevated in metals but are net alkaline
Metal concentrations decrease with flow through wetland
Wetland does not effectively treat the discharge to acceptable quality
Redesigning system may result in improved effluent water quality
![Page 24: Mine Water Quality Changes in at the Mayer Ranch Wetland Kim Wahnee Dr. Robert Nairn Dr. Keith Strevett REU 2000](https://reader036.vdocuments.site/reader036/viewer/2022062805/5697bfda1a28abf838cb016c/html5/thumbnails/24.jpg)
Acknowledgements
Dr. Robert NairnDr. Keith StrevettErin BreetzkeTodd WolfardLisa HareJacob MankoSharon & Janna
Robbins
Rebecca JimCarrie EvensonNSFEBEL and BEESL And the REU 2000 WILD
AND WONDERFUL WETLAND WOMEN !!!!